Definition of cat's claw:
(n) :
Any of several species of plant having parts resembling the claw of a cat.
(n) :
Dolichandra unguis-cati (cat's claw creeper), a Central American climbing vine of the Bignoniaceae family
(n) :
Uncaria tomentosa, a plant species found in the tropical jungles of South and Central America
(n) :
Uncaria rhynchophylla, a plant species used in traditional Chinese medicine
(n) :
Senegalia greggii, formerly Acacia greggii, a tree species native to the southwestern United States and northern Mexico
(n) :
Senegalia lowei (syn. Acacia plumosa, feathery acacia), a medicinal plant species native to Brazil